The new version of the Pentax lens cap is a much better set up than the old versions where the pinch clips were only on the outside of the lens cap. As we know, the new versions have the pinch points both on the outside and on the inside so as you can remove or attach the lens cap with the lens hood in place. The trouble is, the centre pich points are smooth and not ribbed with grips, so if you are like me, you sometimes may get sweaty fingers and they can slip of the centre pinch points and the cap slips all over the lens front element or off the lens completely.
My solution is to get some of that tape that they use to put on stairs, so as to add extra grip on the edge of each stair, and cut it to suit the centre pinch points. The tape usually comes in widths of about 40-60mm, so I cut the tape to 4-5mm, which is about the depth of the centre pinch point of the 58mm, 67mm and 77mm lens caps, and use different widths depending on the size of the lens cap. You've got no idea how much better and more positive this is when attaching and removing the lens cap. Here is what it looks like in situ
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Lance B
http://www.pbase.com/lance_b
My solution is to get some of that tape that they use to put on stairs, so as to add extra grip on the edge of each stair, and cut it to suit the centre pinch points. The tape usually comes in widths of about 40-60mm, so I cut the tape to 4-5mm, which is about the depth of the centre pinch point of the 58mm, 67mm and 77mm lens caps, and use different widths depending on the size of the lens cap. You've got no idea how much better and more positive this is when attaching and removing the lens cap. Here is what it looks like in situ
--
Lance B
http://www.pbase.com/lance_b